Embodiments of the present invention relate to a computer-implemented method that includes binary weaving a second computer program code into the byte code of a first computer program code using a code weaver to form a third program product with a plurality of time measurement points. The programs can include sending a request via a network requesting information from a server computer system. The embodiment of the present invention may include measuring the execution time between the execution of a start point to the execution of a corresponding stop point.